Wirewound Axial Miniature Wirewound Current Sense •Ultra-low ohmic value series for Current Sensing applications •Very low inductance (<1nH at 1MHz Test) •Miniaturized dimensions, Better power to dimension ratios •Use of the highest quality standard (96% Alumina) ceramic core •Manufacturing process–Wire winding/Spot Welding–by Computer Numerical Control (CNC) machine tools to ensure consistency of product quality. •Encapsulated by epoxy molding compound •Advanced IC encapsulation mold/die technologies SERIES S P ECI F ICATI O N S Type WLA WLB WLC WLD Power Rating (watts) 0.5 1 2 3 Resistance Range (Ω) 0.005-0.100 0.005-0.100 0.010-0.100 0.010-0.100 characteristics Ceramic Core CeramTec Rubalit® 96% alumina Derating End Caps Stainless steel, precision formed Leads Copper wire, 100% Sn (Lead Free) coated Resistance Wire CN49W alloy TC ±20ppm/°C Encapsulation SUMICON 1100/1200 Epoxy molding compound for IC encapsulation Standard Tolerance F (1.0%), J (5.0%) Temperature Coefficient ±300ppm/°C for ≤0.03Ω; ±100ppm/°C for ≥0.033Ω 100 Percent Rated Power Current Sense WL Series F e at u r e s 80 60 40 20 Maximum Working Voltage √PxR 0 0 25 50 75 100 125 150 175 Ambient Temperature, °C P ER F O R M A N CE D ATA Test Conditions Of Test Thermal Shock Rated power applied until thermal stability, -55°C +0°C,-5°C,15min. Performance ±2.0% Short-time Overload 5 times rated wattage for 5 seconds ±2.0% Solderability Method 208 of MIL-STD-202 ±2.0% Terminal Strength Pull test:10 pounds, 5 to10 seconds, Twist test: 1080°, 5 second/rotation Dielectric Withstanding Voltage 500 Volts rms for 1W. 1 minute High Temperature Exposure Exposed to an ambient temperature of 275 +5/-0°C for 250 ±8 hours, Moisture Resistance MIL-STD-202 Method 106, 7b not applicable Low Temperature Storage Cold chamber at a temperature of -65 ±2°C for 24 ±4 hours Vibration, High Frequency Frequency varied 10 to 2000Hz, 200G peak, 2 directions 6 hours each Load Life 1000/2000 hours at rated power, +25°C, 1.5 hours “On”, 0.5 hours “Off” 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] ±1.0% ±1.0% ±5.0% ±2.0% ±2.0% ±1.0% ±5.0% (continued) Wirewound Axial Current Sense WL Series Miniature Wirewound Current Sense d i m e n s i on s (in./mm) 0.984 / 25 L � D d � Type Power Rating (watts) L D d WLA 0.5 5.08 / 0.200 2.54 / 0.100 0.60 / 0.024 WLB 1 7.00 / 0.276 3.30 / 0.130 0.60 / 0.024 WLC 2 11.4 / 0.450 4.57 / 0.180 0.80 / 0.031 WLD 3 13.54 / 0.530 5.50 / 0.216 0.80 / 0.031 o r d e r i n g i nfo r m a t i on Standard Part Numbers for WL Series RoHS compliant Wattage: Series: ����������� Series Power A = 0.5 B=1 C=2 0.5 WLA 1.0 WLB 2.0 WLC 0.005 WLAR005FE 0.01 WLAR01FE 0.015 WLAR015FE 0.02 WLAR02FE WLBR005FE WLBR01FE WLBR015FE WLBR02FE WLCR01FE WLCR015FE WLCR02FE 0.025 WLAR025FE 0.03 WLAR03FE 0.05 WLAR05FE 0.10 WLAR10FE WLBR025FE WLBR03FE WLBR05FE WLBR10FE WLCR025FE WLCR03FE WLCR05FE WLCR10FE Ohms Ohms Tolerance Package F = 1% T = Tape J = 5% blank = 25pc Pack Key to five-band code Band 1 2 3 Color Digit Black 4 Multiplier 0 0 0 x 1Ω 1234 5 5 Tolerance Brown 1 1 1 x 10Ω ± 1% (F) Red 2 2 2 x 100Ω ± 2% (G) Orange 3 3 3 x 1KΩ Yellow 4 4 4 x 10KΩ Green 5 5 5 x 100KΩ ± 0.5% (D) Blue 6 6 6 x 1MΩ ± 0.25% (C) Violet 7 7 7 x 10MΩ ± 0.10% (B) Grey 8 8 8 ± 0.05% White 9 9 9 x 0.001Ω Gold x 0.1Ω ± 5% (J) Silver x 0.01Ω ± 10% (K) 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected]